21577572

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{263}}^1$

素因数の和:369

約数の個数: 72

約数和(自身を含む): 57081024

約数和(自身を除く): 35503452

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 53, 86, 106, 129, 159, 172, 212, 258, 263, 318, 387, 477, 516, 526, 636, 774, 789, 954, 1052, 1548, 1578, 1908, 2279, 2367, 3156, 4558, 4734, 6837, 9116, 9468, 11309, 13674, 13939, 20511, 22618, 27348, 27878, 33927, 41022, 41817, 45236, 55756, 67854, 82044, 83634, 101781, 125451, 135708, 167268, 203562, 250902, 407124, 501804, 599377, 1198754, 1798131, 2397508, 3596262, 5394393, 7192524, 10788786, 21577572]

約数ペア:

[(1, 21577572), (2, 10788786), (3, 7192524), (4, 5394393), (6, 3596262), (9, 2397508), (12, 1798131), (18, 1198754), (36, 599377), (43, 501804), (53, 407124), (86, 250902), (106, 203562), (129, 167268), (159, 135708), (172, 125451), (212, 101781), (258, 83634), (263, 82044), (318, 67854), (387, 55756), (477, 45236), (516, 41817), (526, 41022), (636, 33927), (774, 27878), (789, 27348), (954, 22618), (1052, 20511), (1548, 13939), (1578, 13674), (1908, 11309), (2279, 9468), (2367, 9116), (3156, 6837), (4558, 4734)]